MEDIUM
10th CBSE
IMPORTANT
Earn 100

How is it that the ionic compounds in the solid state do not conduct electricity and they do so when in the molten state?

Important Questions on Metals And Non-Metals

HARD
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3B>Q 3
Show with the help of a diagram the transfer of electrons between the atoms in the formation of MgO.
MEDIUM
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3B>Q 3
Name the solvent in which ionic compounds are generally soluble.
MEDIUM
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3B>Q 3
Why aqueous solutions of ionic compounds conduct electricity?
MEDIUM
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3B>Q 1
Write the electron dot structures for sodium, magnesium, oxygen and chlorine.
EASY
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3B>Q 1
Why are ionic compounds soluble in water?
MEDIUM
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3B>Q 2

Show the formation of the following by electron transfer:

(i) NaCl, (ii) MgCl2, (iii) Na2O, (iv) MgO

MEDIUM
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3B>Q 2
Why do ionic compounds have high melting points?
MEDIUM
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 3 - Metals And Non-Metals>EXERCISE 3C>Q 1

A small piece of sodium is dropped into a beaker containing water. Which of the following observations are incorrect?